DE19882321T1 - Micro actuator servo system in a disk drive - Google Patents

Micro actuator servo system in a disk drive

Info

Publication number
DE19882321T1
DE19882321T1 DE19882321T DE19882321T DE19882321T1 DE 19882321 T1 DE19882321 T1 DE 19882321T1 DE 19882321 T DE19882321 T DE 19882321T DE 19882321 T DE19882321 T DE 19882321T DE 19882321 T1 DE19882321 T1 DE 19882321T1
Authority
DE
Germany
Prior art keywords
disk drive
servo system
micro actuator
actuator servo
micro
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE19882321T
Other languages
German (de)
Inventor
John C Morris
Randall D Hampshire
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seagate Technology LLC
Original Assignee
Seagate Technology LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/924,552 external-priority patent/US6768610B1/en
Application filed by Seagate Technology LLC filed Critical Seagate Technology LLC
Publication of DE19882321T1 publication Critical patent/DE19882321T1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
    • G11B5/5526—Control therefor; circuits, track configurations or relative disposition of servo-information transducers and servo-information tracks for control thereof
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/596—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following
    • G11B21/106—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following on disks
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/16—Supporting the heads; Supporting the sockets for plug-in heads
    • G11B21/24—Head support adjustments
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
    • G11B5/5552—Track change, selection or acquisition by displacement of the head across disk tracks using fine positioning means for track acquisition separate from the coarse (e.g. track changing) positioning means
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/596—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
    • G11B5/59627—Aligning for runout, eccentricity or offset compensation
DE19882321T 1997-04-18 1998-04-20 Micro actuator servo system in a disk drive Withdrawn DE19882321T1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US4463797P 1997-04-18 1997-04-18
US08/924,552 US6768610B1 (en) 1997-08-27 1997-08-27 Microactuator servo system in a disc drive
PCT/US1998/008035 WO1998048412A2 (en) 1997-04-18 1998-04-20 Microactuator servo system in a disc drive

Publications (1)

Publication Number Publication Date
DE19882321T1 true DE19882321T1 (en) 2000-04-13

Family

ID=26721785

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19882321T Withdrawn DE19882321T1 (en) 1997-04-18 1998-04-20 Micro actuator servo system in a disk drive

Country Status (6)

Country Link
JP (1) JP2001522505A (en)
KR (1) KR20010006528A (en)
CN (1) CN1252879A (en)
DE (1) DE19882321T1 (en)
GB (1) GB2338821B (en)
WO (1) WO1998048412A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7009802B1 (en) * 2004-12-17 2006-03-07 Matsushita Electric Industrial Co., Ltd. Systems and methods for printed-media SSW reference pattern with extra servo bursts used near OD
CN103678140A (en) * 2012-09-03 2014-03-26 联想(北京)有限公司 Method for data storage and electronic equipment
JP2020149751A (en) * 2019-03-15 2020-09-17 株式会社東芝 Magnetic disk device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3064336B2 (en) * 1989-06-28 2000-07-12 株式会社日立製作所 Information handling device and disk device
US5293282A (en) * 1989-11-03 1994-03-08 Conner Peripherals, Inc. Multiple actuator disk drive
JP3166181B2 (en) * 1991-02-28 2001-05-14 株式会社日立製作所 Magnetic storage device
US5343347A (en) * 1992-05-01 1994-08-30 Gilovich Paul A Magnetic disk storage module with multiple sets of actuator arms for simultaneous read/write operations at different circumferential locations within the disk stack
US5745319A (en) * 1992-08-12 1998-04-28 Kabushiki Kaisha Toshiba Recording/reproducing apparatus with coarse and fine head positioning actuators and an elastic head gimbal
US5519605A (en) * 1994-10-24 1996-05-21 Olin Corporation Model predictive control apparatus and method

Also Published As

Publication number Publication date
JP2001522505A (en) 2001-11-13
CN1252879A (en) 2000-05-10
GB2338821B (en) 2002-01-09
WO1998048412A3 (en) 1999-02-11
KR20010006528A (en) 2001-01-26
GB9923669D0 (en) 1999-12-08
GB2338821A (en) 1999-12-29
WO1998048412A2 (en) 1998-10-29

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Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: SEAGATE TECHNOLOGY LLC, SCOTTS VALLEY, CALIF., US

8141 Disposal/no request for examination